import React from "react";
import { FormItem, Renderer } from "../../../src/index";

@FormItem({
  type: "my-custom",
})
class MyFormItem extends React.Component {
  render() {
    const { value, onChange } = this.props;

    return (
      <div>
        <p>这个是个自定义组件。通过注册渲染器的方式实现。</p>

        <p>当前值：{JSON.stringify(value)}</p>

        <a
          className="btn btn-default"
          onClick={() => onChange(Math.round(Math.random() * 10000))}
        >
          随机修改
        </a>
      </div>
    );
  }
}

@Renderer({
  test: /(^|\/)my\-renderer$/,
  autoVar: true,
})
class CustomRenderer extends React.Component {
  render() {
    const { tip, source } = this.props;
    return source ? (
      <div>{`非 FormItem 类型的渲染器注册，通过变量获取 x 的值为：${source}`}</div>
    ) : (
      <div>{tip}</div>
    );
  }
}

export default {
  title: "自定义组件示例",
  body: [
    {
      type: "form",
      mode: "horizontal",
      api: "/api/mock2/form/saveForm?waitSeconds=2",
      debug: true,
      actions: [
        {
          type: "submit",
          label: "提交",
          primary: true,
        },
      ],
      body: [
        {
          label: "姓名",
          type: "text",
          name: "name",
        },

        {
          type: "divider",
        },

        {
          label: "使用 custom 组件",
          name: "name",
          type: "custom",
          onMount: (dom, data, onChange) => {
            const button = document.createElement("button");
            button.innerText = "点击修改姓名";
            button.onclick = (event) => {
              onChange("new name");
              event.preventDefault();
            };
            dom.appendChild(button);
          },
          onUpdate: (dom, data) => {
            console.log("数据有变化", data);
          },
        },

        {
          type: "divider",
        },

        {
          name: "a",
          asFormItem: true,
          children: ({ value, onChange }) => (
            <div>
              <p>这是使用 children 的方式，也无需注册。</p>

              <p>当前值：{value}</p>

              <a
                className="btn btn-default"
                onClick={() => onChange(Math.round(Math.random() * 10000))}
              >
                随机修改
              </a>
            </div>
          ),
        },

        {
          type: "divider",
        },

        {
          name: "b",
          type: "my-custom",
          label: "自定义FormItem",
        },

        {
          type: "divider",
        },

        {
          type: "control",
          body: {
            type: "my-renderer",
            source: "${x}",
          },
        },

        {
          type: "divider",
        },
        {
          label: "",
          asFormItem: true,
          children: ({ render }) => (
            <div>
              <p>组合现有组件</p>

              {render(
                "formitem",
                [
                  {
                    type: "input-text",
                    name: "x",
                    label: "X",
                    value: "1",
                  },
                  {
                    type: "input-text",
                    name: "y",
                    label: "Y",
                  },
                ],
                {
                  formMode: "normal",
                }
              )}
            </div>
          ),
        },
        {
          name: "c",
          label: "",
          asFormItem: true,
          component: ({ render, value, onChange, name }) => {
            function handleXChange(x) {
              value = {
                ...value,
                x,
              };
              onChange(value);

              // 一定要 return false
              return false;
            }

            function handleYChange(y) {
              value = {
                ...value,
                y,
              };
              onChange(value);

              // 一定要 return false
              return false;
            }

            return (
              <div>
                <p>组合现有组件并控制数据</p>

                {render(
                  "item1",
                  {
                    type: "input-text",
                    name: "x",
                    label: "X",
                  },
                  {
                    value: value?.x || "",
                    onChange: handleXChange,
                  }
                )}

                {render(
                  "item2",
                  {
                    type: "input-text",
                    name: "y",
                    label: "Y",
                  },
                  {
                    value: value?.y || "",
                    onChange: handleYChange,
                  }
                )}
              </div>
            );
          },
        },
      ],
    },

    {
      type: "my-renderer",
      tip: "放表单外的情况",
    },
  ],
};
